Full list of 2018 iHeartRadio Music Awards winners

Former One Direction bandmates, Niall Horan, Louis Tomlinson and Harry Styles won big at this year's iHeartRadio Music Awards last night(March 11), which took place at the Forum in Inglewood, California.

Horan won both the Best New Pop Artist and Best Lyrics for "Slow Hands". Styles won Best Music Video for "Sign Of The Times" and Best Cover Song for Fleetwood Mac's "The Chain". Tomlinson won the Best Solo Breakout Award.

Camila Cabello was honoured with the iHeartRadio first ever Fangirls Award presented by L'Oréal Paris for "demonstrating ambition, passion and a strong sense of self-worth."

iHeartRadio also presented Chance the Rapper with the Innovator Award for his accomplishments in the music industry and dedication to social activism.